90 RS LO3 TBI Won't Start
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Senior Member
Joined: Apr 2003
Posts: 595
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From: Albany GA
Car: '90 RS Vert
Engine: 305 TBI
Transmission: 700-R4
90 RS LO3 TBI Won't Start
About 18 months ago I got hit by a deer. (ran into the side and rolled front to back leaving dents.) I drove home and parked the car. My workload prevented me from doing anything with it until now. The car was running perfectly when parked.
Now, I have gone out and put in good gas along with some seafoam to deal with whatever condensate that might be in the tank. When I turn the key I hear the fuel pump run until it gets up to pressure then it shuts off. I turn the key to engage the starter and the engine turns over. I can see on the gauge that it is building more than enough oil pressure. Yet, the motor just turns over and over with no sign of cranking.
I purchased some starting fluid. It actually attempted to catch once. Now even Starting fluid gets no positive response from the engine.
I have checked the fuses for injectors, and any others under the dash that seemed appropriate. All fused looked good.
What am I missing? What should I try next?
Now, I have gone out and put in good gas along with some seafoam to deal with whatever condensate that might be in the tank. When I turn the key I hear the fuel pump run until it gets up to pressure then it shuts off. I turn the key to engage the starter and the engine turns over. I can see on the gauge that it is building more than enough oil pressure. Yet, the motor just turns over and over with no sign of cranking.
I purchased some starting fluid. It actually attempted to catch once. Now even Starting fluid gets no positive response from the engine.
I have checked the fuses for injectors, and any others under the dash that seemed appropriate. All fused looked good.
What am I missing? What should I try next?
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Joined: May 2009
Posts: 227
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From: wisconsin
Car: 1991 camaro convertible
Engine: LS3
Transmission: 6l80
Axle/Gears: Ford 8.8 3.31 torsen t2r
Re: 90 RS LO3 TBI Won't Start
Well , first did you put good gas on top of bad? I you did now you just have more bad gas. When you take air cleaner ,can you see the injectors spraying when you crank it? Do you have spark?
Thread Starter
Senior Member
Joined: Apr 2003
Posts: 595
Likes: 0
From: Albany GA
Car: '90 RS Vert
Engine: 305 TBI
Transmission: 700-R4
Re: 90 RS LO3 TBI Won't Start
Bad gas? Yes and no... The gas that was in it had been treated with seafoam. There wasn't much left in there. The gas that I added was also mixed with seafoam.
Unfortunately I am working alone on this project. I don't have a helper to turn the key so that I can observe the the injectors. There might be a fuel
problem but I would expect the problem to be spark since it will not even fire off using starting fluid...
I ordered a new Distributor Cap, button, and coil. Unfortunately they did not come in today...
Thank you for your input on this! I really want to get the ole girl fixed up and back on the road!
Unfortunately I am working alone on this project. I don't have a helper to turn the key so that I can observe the the injectors. There might be a fuel
problem but I would expect the problem to be spark since it will not even fire off using starting fluid...
I ordered a new Distributor Cap, button, and coil. Unfortunately they did not come in today...
Thank you for your input on this! I really want to get the ole girl fixed up and back on the road!
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